Friday, April26, 2019 L-36.com


Marine Weather and Tides
North Key Largo, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:48AMSunset 7:51PM Friday April 26, 2019 1:45 AM EDT (05:45 UTC) Moonrise 12:50AMMoonset 11:47AM Illumination 58% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
AMZ630 Biscayne Bay- 930 Pm Edt Thu Apr 25 2019
Rest of tonight..South winds 5 to 10 knots. Bay waters a light chop.
Friday..Southwest winds 10 to 15 knots. Bay waters a moderate chop. Slight chance of showers in the morning.
Friday night..Northwest winds 5 to 15 knots. Bay waters a moderate chop. Slight chance of showers after midnight.
Saturday..Northeast winds 5 to 10 knots becoming east in the afternoon. Bay waters a light chop.
Saturday night..East winds around 5 knots. Bay waters smooth.
Sunday..Southeast winds 5 to 10 knots. Bay waters a light chop.
Sunday night..East winds 5 to 10 knots. Bay waters a light chop.
Monday through Tuesday..East winds 5 to 15 knots. Bay waters a moderate chop. Slight chance of showers.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 930 Pm Edt Thu Apr 25 2019
Synopsis.. SE winds are forecast to veer and increase from the sw tonight into Friday morning as a cold front approaches the region. Then, Friday night into Saturday morning, winds will veer from the w/nw after frontal passage. For the time being, small craft should exercise caution across the offshore atlantic waters and lake okeechobee throughout the day tomorrow. Increasing chance for showers and Thunderstorms Friday into parts of the weekend, particularly for the atlantic waters. By next week, a persistent easterly flow returns with the potential for increasing winds and waves.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of apr 25, 2019 at 1200 utc... 7 nautical miles east of fowey rocks. 12 nautical miles east northeast of port everglades. 10 nautical miles east southeast of lake worth. 13 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near North Key Largo CDP, FL
   Hourly   EDIT   Help
location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmfl 252330 aaa
afdmfl
area forecast discussion... Updated
national weather service miami fl
730 pm edt Thu apr 25 2019

Aviation
The winds will be from the southerly direction tonight with speeds
between 5 to 10 mph over all of the TAF sites before going
southwest on Friday with speed increasing to around 15 knots
ahead of a cold front. The front should be mostly a dry front on
Friday, except for some showers around kapf TAF site. The ceiling
and vis should remain inVFR conditions through Friday.

Update
Main change is to add a slight chance of showers for portions of
the atlantic coast and kept higher winds into the overnight hours.

Otherwise, little change to the forecast.

Prev discussion issued 351 pm edt Thu apr 25 2019
discussion...

weakening surface high pressure to the east has kept today's
weather mostly dry with near normal temperatures across the
region. To the northwest, an upper-level trough is chugging across
the lower mississippi river valley with an associated surface low
pressure area and attendant cold front stretching southward into
the west central gulf of mexico. As the evening and overnight
hours progress, the system will continue its eastward voyage
towards the florida peninsula, increasing the thunderstorm and
shower chances along with the pressure gradient. A breezy day is
in store for Friday due to the tighter pressure gradient which
will may possibly provide advisory level conditions across the
atlantic waters and cautionary conditions across lake okeechobee... More
in marine section below...

the main story here is what the storm prediction center is saying.

Previously, a good chunk of south florida was under a "marginal"
risk for severe storms Friday; now, that risk has been pulled
northwards with only the far NW portion of glades county in the
"marginal" risk. Otherwise, pretty much all of south florida is
now in a general thunderstorm risk, moreso along the waters and
lake okeechobee region. As the front traverses the state from nw
to SE on Friday, the stronger and more supportive dynamics rest
across central northern florida. Regardless, there is still a
chance for isolated thunderstorms across the region tomorrow.

Friday night into Saturday looks even more unfavorable for
thunderstorm development across the peninsula as dry air begins
to filter in and the environment becomes increasingly hostile for
thunderstorm development.

Entering the weekend, guidance continues to hone in on drier air
filtering southward into south florida. This will lead for a
generally mostly dry weekend. Some showers, fed by atlantic and
gulf moisture, cannot be ruled out especially if any sea breezes
were able to get going on Saturday or Sunday (which it looks like
they will). Temperature wise, no impact from the cold front
whatsoever... High temps are still forecast to be in the low to mid
80s areawide.

By early next week, high pressure will build back towards the
area from the atlantic which will allow for persistent easterly
flow to return through the rest of the forecast period. GFS and
ecmwf do differ a bit in the amount of available moisture heading
into mid-week next week. Favored a blend between the two models
for pops for the time being due to low confidence.

Marine...

se winds are forecast to veer and increase from the SW tonight
into Friday morning as a cold front approaches the region. Then,
Friday night into Saturday morning, winds will veer from the W nw
after frontal passage. For the time being, small craft should
exercise caution across the offshore atlantic waters and lake
okeechobee throughout the day tomorrow. Advisory criteria might be
met for the offshore waters, but will monitor overnight to see if
that is the case.

Increasing chance for showers and thunderstorms Friday into parts
of the weekend, particularly for the atlantic waters. By next
week, a persistent easterly flow returns with the potential for
increasing winds and waves.

Beach forecast...

as a cold front approaches the region Friday, an elevated risk of
rip currents could develop briefly along the palm beach county
beaches due to a northeasterly swell. That risk should stick
around for the couple of days before further increasing early
next week as easterly winds return. This return in easterly wind
flow will also increase the rip current threat for the rest of
the atlantic beaches by early next week.

Preliminary point temps pops
West palm beach 70 88 68 83 10 20 10 10
fort lauderdale 73 89 71 83 10 20 10 10
miami 73 88 69 83 10 20 10 10
naples 70 84 66 86 10 30 10 10

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Update... 03 fell
discussion... 03 fell
marine... 03 fell
aviation... 54 bnb
beach forecast... 03 fell


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MDKF1 7 mi45 min 82°F
THRF1 9 mi105 min 81°F
HCEF1 - Highway Creek, FL 10 mi45 min 82°F
LSNF1 - Long Sound, FL 11 mi45 min 81°F
LBSF1 - Little Blackwater, FL 11 mi105 min 82°F
BWSF1 - Blackwater Sound, FL 13 mi105 min 80°F
DKKF1 - Duck Key, FL 15 mi105 min 81°F
TCVF1 - Trout Cove, FL 15 mi105 min 84°F
BNKF1 - Butternut Key, FL 20 mi45 min 80°F
TRRF1 - Taylor River, FL 21 mi45 min 86°F
LMDF1 - Little Madeira, FL 21 mi45 min 81°F
BOBF1 - Bob Allen, FL 29 mi45 min 80°F
WRBF1 - Whipray Basin, FL 30 mi45 min ESE 6 81°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi33 min SE 8 G 9.9 78°F 80°F1014.8 hPa
LRIF1 33 mi45 min 82°F
BKYF1 33 mi45 min 84°F
WWEF1 36 mi105 min 81°F
CANF1 - Cane Patch, FL 36 mi45 min 81°F
LRKF1 - Little Rabbit Key, FL 37 mi105 min 81°F
PKYF1 - Peterson Key, FL 37 mi45 min 80°F
TPEF1 - Tarpon Bay East, FL 37 mi105 min 82°F
MUKF1 - Murray Key, FL 38 mi45 min 79°F
JKYF1 - Johnson Key, FL 38 mi45 min 81°F
CWAF1 39 mi105 min 83°F
BDVF1 - Broad River, FL 40 mi45 min 82°F
GBIF1 - Gunboat Island, FL 41 mi45 min 80°F
HREF1 43 mi45 min 80°F
SREF1 44 mi45 min 80°F
WIWF1 - Willy Willy, FL 45 mi45 min 83°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last
24hr
E5
E5
G10
E5
G10
E6
G9
E6
G9
E5
G8
E5
SE8
G11
SE9
G12
SE8
G12
SE10
G14
SE10
SE9
G13
SE10
G13
SE10
G13
SE9
G13
SE9
G12
SE10
G13
SE10
G13
SE6
G9
SE6
G9
SE7
SE6
G9
SE9
1 day
ago
NE6
G9
N3
G7
NE4
G7
NE4
NE4
NE4
G8
NE5
NE6
NE7
NE6
NE6
NE7
NE6
NE6
NE6
E7
G10
E7
E5
G8
NE7
E7
E9
G12
E8
G11
E5
G8
E5
G8
2 days
ago
NE6
NE8
G13
NE8
G11
NE9
G12
NE9
G12
NE7
NE9
G13
NE10
NE9
NE11
G15
NE11
G14
NE12
G16
NE10
G14
NE9
G14
NE10
G13
NE6
G10
NE8
NE10
G14
NE6
G10
NE5
G9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi1.8 hrsSE 310.00 miFair72°F68°F89%1016.2 hPa

Wind History from HST (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrE3E3CalmE3CalmCalmCalmE10SE6S6E9SE9S7SE10
G15
SE8SE11SE9S7SE4SE3SE3SE4SE3Calm
1 day agoCalmW4W3CalmCalmNW3CalmNE4NE5E7NE7E8E4E10E8E9E7E6E5E5E4E3E4E3
2 days agoNE6NE5N4N3CalmCalmNE7E9NE9NE9NE9
G16
NE10
G16
E13NE13E13NE12NE12
G17
NE14NE11NE8--NE7NE5NE4

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ocean Reef Harbor
Click for Map
Fri -- 01:49 AM EDT     Moonrise
Fri -- 02:35 AM EDT     2.19 feet High Tide
Fri -- 06:49 AM EDT     Sunrise
Fri -- 08:55 AM EDT     0.57 feet Low Tide
Fri -- 12:47 PM EDT     Moonset
Fri -- 02:49 PM EDT     1.94 feet High Tide
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:49 PM EDT     Sunset
Fri -- 09:10 PM EDT     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.51.92.12.221.71.30.90.60.60.70.91.31.61.91.91.81.51.20.80.50.40.50.7

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
   EDIT      (on/off)   Help   One Week of Data
Caesar Creek
Click for Map
Fri -- 01:24 AM EDT     0.76 knots Max Flood
Fri -- 01:49 AM EDT     Moonrise
Fri -- 04:28 AM EDT     -0.00 knots Slack
Fri -- 06:48 AM EDT     Sunrise
Fri -- 07:29 AM EDT     -1.07 knots Max Ebb
Fri -- 11:34 AM EDT     0.00 knots Slack
Fri -- 12:47 PM EDT     Moonset
Fri -- 01:33 PM EDT     0.29 knots Max Flood
Fri -- 03:57 PM EDT     -0.00 knots Slack
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:38 PM EDT     -1.32 knots Max Ebb
Fri -- 07:48 PM EDT     Sunset
Fri -- 11:45 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.60.80.70.60.2-0.3-0.8-1-1-0.9-0.6-0.20.10.30.30.2-0-0.5-1-1.3-1.3-1.2-0.8-0.4

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (1,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Miami, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.